I have some Light Cars on order for a Sinai ITLSU force. While Light Car Patrols are mentioned under Armoured cars and Tanks in the Troops section I can't find any specific rules for them. I assume they would move and fire as Armoured cars. However, I suspect the rules for firing on them should be different to the rules for firing on armoured cars or tanks (9.17 firing on AFVs).

Basically they were Model T trucks with a Vickers MG or similar mounted on the back deck and possibly a Lewis or similar mounted next to the driver.

Should infantry be able to damage Light Cars beyond short range?

Should infantry be able to get kills on Light Car?

Should Light Cars counts as hard cover targets?

How many strength points should a Light Car start he game with (Armoured cars 4, Tanks 6)?

Claud williams memoir provides a lot of detail about light car operations. Although primarily used for patrolling (rather than scouting) and mapping they were originally designed to be handmaidens to the Rolls Royce armoured cars. However they soon proved to be better in most terrain types than the RR units and acted both as support and as operational units in their own right. At Siwa for example six armoured cars and a dozen light cars were the only troops involved. The LCs could scramble up steep hillsides and over broken ground. The LCs were faster and more reliable. Oddly there is hardly any references to them sustaining battle damage. This could be because there just wasn't much to a Model T that could be damaged.

I'm inclined to think a strength of 2 but unless moving on a road they can only be targeted at short range by Infantry-MG's-artillery.

The reason is I think the crews would be using whatever cover, low spots or scrub available unless on a road. If patrolling or scouting they would be looking for any potentially hostile forces and if seen would certainly use cover.